hypodermis morphology trait VT:0003705 Trait.ontology Any measurable or observable characteristic related to the shape, structure, color, or pattern of the irregular layer of adipose and connective tissue, stroma, or membrane immediately deep to the skin and superficial to the deep fascia; usually consists primarily of either just loose connective tissue, or a fatty layer that may also include a muscle layer, and/or a fibrous layer; may also occur as a membranous layer only, being nearly devoid of fat. subcutis morphology trait subcutaneous tissue morphology trait skin adnexa morphology trait